Measurements of the proton elastic-form-factor ratio μpGEp/GMp at low momentum transfer

G. Ron; J. Glister; B. Lee; K. Allada; W. Armstrong; J. Arrington; A. Beck; F. Benmokhtar; B. L. Berman; W. Boeglin; E. Brash; A. Camsonne; J. Calarco; J. P. Chen; Seonho Choi; E. Chudakov; L. Coman; B. Craver; F. Cusanno; J. Dumas; C. Dutta; R. Feuerbach; A. Freyberger; S. Frullani; F. Garibaldi; R. Gilman; O. Hansen; D. W. Higinbotham; T. Holmstrom; C. E. Hyde; H. Ibrahim; Y. Ilieva; C. W. De Jager; X. Jiang; M. K. Jones; H. Kang; A. Kelleher; E. Khrosinkova; E. Kuchina; G. Kumbartzki; J. J. Lerose; R. Lindgren; P. Markowitz; S. May-Tal Beck; E. McCullough; D. Meekins; M. Meziane; Z. E. Meziani; R. Michaels; B. Moffit; B. E. Norum; Y. Oh; M. Olson; M. Paolone; K. Paschke; C. F. Perdrisat; E. Piasetzky; M. Potokar; R. Pomatsalyuk; I. Pomerantz; A. Puckett; V. Punjabi; X. Qian; Y. Qiang; R. Ransome; M. Reyhan; J. Roche; Y. Rousseau; A. Saha; A. J. Sarty; B. Sawatzky; E. Schulte; M. Shabestari; A. Shahinyan; R. Shneor; S. Širca; K. Slifer; P. Solvignon; J. Song; R. Sparks; R. Subedi; S. Strauch; G. M. Urciuoli; K. Wang; B. Wojtsekhowski; X. Yan; H. Yao; X. Zhan; X. Zhu

doi:10.1103/PhysRevLett.99.202002

Measurements of the proton elastic-form-factor ratio μpGEp/GMp at low momentum transfer

G. Ron^*, J. Glister, B. Lee, K. Allada, W. Armstrong, J. Arrington, A. Beck, F. Benmokhtar, B. L. Berman, W. Boeglin, E. Brash, A. Camsonne, J. Calarco, J. P. Chen, Seonho Choi, E. Chudakov, L. Coman, B. Craver, F. Cusanno, J. DumasC. Dutta, R. Feuerbach, A. Freyberger, S. Frullani, F. Garibaldi, R. Gilman, O. Hansen, D. W. Higinbotham, T. Holmstrom, C. E. Hyde, H. Ibrahim, Y. Ilieva, C. W. De Jager, X. Jiang, M. K. Jones, H. Kang, A. Kelleher, E. Khrosinkova, E. Kuchina, G. Kumbartzki, J. J. Lerose, R. Lindgren, P. Markowitz, S. May-Tal Beck, E. McCullough, D. Meekins, M. Meziane, Z. E. Meziani, R. Michaels, B. Moffit, B. E. Norum, Y. Oh, M. Olson, M. Paolone, K. Paschke, C. F. Perdrisat, E. Piasetzky, M. Potokar, R. Pomatsalyuk, I. Pomerantz, A. Puckett, V. Punjabi, X. Qian, Y. Qiang, R. Ransome, M. Reyhan, J. Roche, Y. Rousseau, A. Saha, A. J. Sarty, B. Sawatzky, E. Schulte, M. Shabestari, A. Shahinyan, R. Shneor, S. Širca, K. Slifer, P. Solvignon, J. Song, R. Sparks, R. Subedi, S. Strauch, G. M. Urciuoli, K. Wang, B. Wojtsekhowski, X. Yan, H. Yao, X. Zhan, X. Zhu

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Abstract

High-precision measurements of the proton elastic form-factor ratio, μpGEp/GMp, have been made at four-momentum transfer, Q2, values between 0.2 and 0.5GeV2. The new data, while consistent with previous results, clearly show a ratio less than unity and significant differences from the central values of several recent phenomenological fits. By combining the new form-factor ratio data with an existing cross-section measurement, one finds that in this Q2 range the deviation from unity is primarily due to GEp being smaller than expected.

Original language	English
Article number	202002
Journal	Physical Review Letters
Volume	99
Issue number	20
DOIs	https://doi.org/10.1103/PhysRevLett.99.202002
State	Published - 13 Nov 2007
Externally published	Yes

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10.1103/PhysRevLett.99.202002

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Ron, G., Glister, J., Lee, B., Allada, K., Armstrong, W., Arrington, J., Beck, A., Benmokhtar, F., Berman, B. L., Boeglin, W., Brash, E., Camsonne, A., Calarco, J., Chen, J. P., Choi, S., Chudakov, E., Coman, L., Craver, B., Cusanno, F., ... Zhu, X. (2007). Measurements of the proton elastic-form-factor ratio μpGEp/GMp at low momentum transfer. Physical Review Letters, 99(20), Article 202002. https://doi.org/10.1103/PhysRevLett.99.202002

@article{789d1c875e4e4e51b8a98923450902d1,

title = "Measurements of the proton elastic-form-factor ratio μpGEp/GMp at low momentum transfer",

abstract = "High-precision measurements of the proton elastic form-factor ratio, μpGEp/GMp, have been made at four-momentum transfer, Q2, values between 0.2 and 0.5GeV2. The new data, while consistent with previous results, clearly show a ratio less than unity and significant differences from the central values of several recent phenomenological fits. By combining the new form-factor ratio data with an existing cross-section measurement, one finds that in this Q2 range the deviation from unity is primarily due to GEp being smaller than expected.",

author = "G. Ron and J. Glister and B. Lee and K. Allada and W. Armstrong and J. Arrington and A. Beck and F. Benmokhtar and Berman, {B. L.} and W. Boeglin and E. Brash and A. Camsonne and J. Calarco and Chen, {J. P.} and Seonho Choi and E. Chudakov and L. Coman and B. Craver and F. Cusanno and J. Dumas and C. Dutta and R. Feuerbach and A. Freyberger and S. Frullani and F. Garibaldi and R. Gilman and O. Hansen and Higinbotham, {D. W.} and T. Holmstrom and Hyde, {C. E.} and H. Ibrahim and Y. Ilieva and {De Jager}, {C. W.} and X. Jiang and Jones, {M. K.} and H. Kang and A. Kelleher and E. Khrosinkova and E. Kuchina and G. Kumbartzki and Lerose, {J. J.} and R. Lindgren and P. Markowitz and {May-Tal Beck}, S. and E. McCullough and D. Meekins and M. Meziane and Meziani, {Z. E.} and R. Michaels and B. Moffit and Norum, {B. E.} and Y. Oh and M. Olson and M. Paolone and K. Paschke and Perdrisat, {C. F.} and E. Piasetzky and M. Potokar and R. Pomatsalyuk and I. Pomerantz and A. Puckett and V. Punjabi and X. Qian and Y. Qiang and R. Ransome and M. Reyhan and J. Roche and Y. Rousseau and A. Saha and Sarty, {A. J.} and B. Sawatzky and E. Schulte and M. Shabestari and A. Shahinyan and R. Shneor and S. {\v S}irca and K. Slifer and P. Solvignon and J. Song and R. Sparks and R. Subedi and S. Strauch and Urciuoli, {G. M.} and K. Wang and B. Wojtsekhowski and X. Yan and H. Yao and X. Zhan and X. Zhu",

year = "2007",

month = nov,

day = "13",

doi = "10.1103/PhysRevLett.99.202002",

language = "אנגלית",

volume = "99",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "20",

}

Ron, G, Glister, J, Lee, B, Allada, K, Armstrong, W, Arrington, J, Beck, A, Benmokhtar, F, Berman, BL, Boeglin, W, Brash, E, Camsonne, A, Calarco, J, Chen, JP, Choi, S, Chudakov, E, Coman, L, Craver, B, Cusanno, F, Dumas, J, Dutta, C, Feuerbach, R, Freyberger, A, Frullani, S, Garibaldi, F, Gilman, R, Hansen, O, Higinbotham, DW, Holmstrom, T, Hyde, CE, Ibrahim, H, Ilieva, Y, De Jager, CW, Jiang, X, Jones, MK, Kang, H, Kelleher, A, Khrosinkova, E, Kuchina, E, Kumbartzki, G, Lerose, JJ, Lindgren, R, Markowitz, P, May-Tal Beck, S, McCullough, E, Meekins, D, Meziane, M, Meziani, ZE, Michaels, R, Moffit, B, Norum, BE, Oh, Y, Olson, M, Paolone, M, Paschke, K, Perdrisat, CF, Piasetzky, E, Potokar, M, Pomatsalyuk, R, Pomerantz, I, Puckett, A, Punjabi, V, Qian, X, Qiang, Y, Ransome, R, Reyhan, M, Roche, J, Rousseau, Y, Saha, A, Sarty, AJ, Sawatzky, B, Schulte, E, Shabestari, M, Shahinyan, A, Shneor, R, Širca, S, Slifer, K, Solvignon, P, Song, J, Sparks, R, Subedi, R, Strauch, S, Urciuoli, GM, Wang, K, Wojtsekhowski, B, Yan, X, Yao, H, Zhan, X & Zhu, X 2007, 'Measurements of the proton elastic-form-factor ratio μpGEp/GMp at low momentum transfer', Physical Review Letters, vol. 99, no. 20, 202002. https://doi.org/10.1103/PhysRevLett.99.202002

TY - JOUR

T1 - Measurements of the proton elastic-form-factor ratio μpGEp/GMp at low momentum transfer

AU - Ron, G.

AU - Glister, J.

AU - Lee, B.

AU - Allada, K.

AU - Armstrong, W.

AU - Arrington, J.

AU - Beck, A.

AU - Benmokhtar, F.

AU - Berman, B. L.

AU - Boeglin, W.

AU - Brash, E.

AU - Camsonne, A.

AU - Calarco, J.

AU - Chen, J. P.

AU - Choi, Seonho

AU - Chudakov, E.

AU - Coman, L.

AU - Craver, B.

AU - Cusanno, F.

AU - Dumas, J.

AU - Dutta, C.

AU - Feuerbach, R.

AU - Freyberger, A.

AU - Frullani, S.

AU - Garibaldi, F.

AU - Gilman, R.

AU - Hansen, O.

AU - Higinbotham, D. W.

AU - Holmstrom, T.

AU - Hyde, C. E.

AU - Ibrahim, H.

AU - Ilieva, Y.

AU - De Jager, C. W.

AU - Jiang, X.

AU - Jones, M. K.

AU - Kang, H.

AU - Kelleher, A.

AU - Khrosinkova, E.

AU - Kuchina, E.

AU - Kumbartzki, G.

AU - Lerose, J. J.

AU - Lindgren, R.

AU - Markowitz, P.

AU - May-Tal Beck, S.

AU - McCullough, E.

AU - Meekins, D.

AU - Meziane, M.

AU - Meziani, Z. E.

AU - Michaels, R.

AU - Moffit, B.

AU - Norum, B. E.

AU - Oh, Y.

AU - Olson, M.

AU - Paolone, M.

AU - Paschke, K.

AU - Perdrisat, C. F.

AU - Piasetzky, E.

AU - Potokar, M.

AU - Pomatsalyuk, R.

AU - Pomerantz, I.

AU - Puckett, A.

AU - Punjabi, V.

AU - Qian, X.

AU - Qiang, Y.

AU - Ransome, R.

AU - Reyhan, M.

AU - Roche, J.

AU - Rousseau, Y.

AU - Saha, A.

AU - Sarty, A. J.

AU - Sawatzky, B.

AU - Schulte, E.

AU - Shabestari, M.

AU - Shahinyan, A.

AU - Shneor, R.

AU - Širca, S.

AU - Slifer, K.

AU - Solvignon, P.

AU - Song, J.

AU - Sparks, R.

AU - Subedi, R.

AU - Strauch, S.

AU - Urciuoli, G. M.

AU - Wang, K.

AU - Wojtsekhowski, B.

AU - Yan, X.

AU - Yao, H.

AU - Zhan, X.

AU - Zhu, X.

PY - 2007/11/13

Y1 - 2007/11/13

N2 - High-precision measurements of the proton elastic form-factor ratio, μpGEp/GMp, have been made at four-momentum transfer, Q2, values between 0.2 and 0.5GeV2. The new data, while consistent with previous results, clearly show a ratio less than unity and significant differences from the central values of several recent phenomenological fits. By combining the new form-factor ratio data with an existing cross-section measurement, one finds that in this Q2 range the deviation from unity is primarily due to GEp being smaller than expected.

AB - High-precision measurements of the proton elastic form-factor ratio, μpGEp/GMp, have been made at four-momentum transfer, Q2, values between 0.2 and 0.5GeV2. The new data, while consistent with previous results, clearly show a ratio less than unity and significant differences from the central values of several recent phenomenological fits. By combining the new form-factor ratio data with an existing cross-section measurement, one finds that in this Q2 range the deviation from unity is primarily due to GEp being smaller than expected.

UR - http://www.scopus.com/inward/record.url?scp=36148934918&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.99.202002

DO - 10.1103/PhysRevLett.99.202002

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AN - SCOPUS:36148934918

SN - 0031-9007

VL - 99

JO - Physical Review Letters

JF - Physical Review Letters

IS - 20

M1 - 202002

ER -

Measurements of the proton elastic-form-factor ratio μpGEp/GMp at low momentum transfer

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